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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1877 | 1 |
| 1881 | 1 |
| 1882 | 1 |
| 1902 | 1 |
| 1953 | 1 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 2 |
| 1963 | 1 |
| 1965 | 4 |
| 1966 | 8 |
| 1967 | 7 |
| 1968 | 8 |
| 1969 | 6 |
| 1970 | 12 |
| 1971 | 4 |
| 1972 | 14 |
| 1973 | 13 |
| 1974 | 18 |
| 1975 | 9 |
| 1976 | 17 |
| 1977 | 18 |
| 1978 | 24 |
| 1979 | 15 |
| 1980 | 27 |
| 1981 | 21 |
| 1982 | 28 |
| 1983 | 27 |
| 1984 | 26 |
| 1985 | 38 |
| 1986 | 40 |
| 1987 | 37 |
| 1988 | 62 |
| 1989 | 67 |
| 1990 | 48 |
| 1991 | 53 |
| 1992 | 47 |
| 1993 | 51 |
| 1994 | 64 |
| 1995 | 58 |
| 1996 | 43 |
| 1997 | 49 |
| 1998 | 49 |
| 1999 | 52 |
| 2000 | 68 |
| 2001 | 67 |
| 2002 | 86 |
| 2003 | 99 |
| 2004 | 134 |
| 2005 | 116 |
| 2006 | 148 |
| 2007 | 191 |
| 2008 | 256 |
| 2009 | 304 |
| 2010 | 352 |
| 2011 | 383 |
| 2012 | 456 |
| 2013 | 524 |
| 2014 | 555 |
| 2015 | 608 |
| 2016 | 671 |
| 2017 | 651 |
| 2018 | 654 |
| 2019 | 707 |
| 2020 | 989 |
| 2021 | 1263 |
| 2022 | 1344 |
| 2023 | 946 |